Question Detail
Question
Early mammal fossil skeletons had large eye sockets. What might this indicate about early mammals?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Fossil skeletons show that early mammals had large eye sockets, which may have meant that they were active at night, as large eye sockets often indicate adaptation for low-light conditions.
Hint
Consider what large eye sockets suggest about activity patterns in low light.